Inventor

Eiji Matsubara

Inventor

Niwa-gun, JP

Overview

6→

Patents

1993–2021

Patent span

Performing operations

Primary field (CPC B)

Patents· 6 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

F21Sprimary

F21SNon-portable lighting devices12%

G03CPhotosensitive materials for photographic purposes12%

B22FWorking metallic powder6%

B23KSoldering or unsoldering6%

B23PMetal-working not otherwise provided for6%

B23QDetails, components, or accessories for machine tools, e.g. arrangements for copying or controlling6%

B29CShaping or joining of plastics6%

B29KIndexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials or to materials for moulds, reinforcements, fillers or preformed parts, e.g. inserts6%

B29LIndexing scheme associated with subclass b29c, relating to particular articles6%

B33YAdditive manufacturing, i.e. manufacturing of three-dimensional [3d] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3d printing, stereolithography or selective laser sintering6%

PatentTitleYear

11,130,178Composite processing machine, machining tool, and composite processing method2021 11,130,193Friction stir welding tool and friction stir welder2021 10,697,610Resin molded product2020 10,520,155Light guide and vehicle lamp2019 5,300,410'Developer for silver halide photographic light-sensitive material'1994 5,258,258'Process for making lithographic printing plates'1993

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1993–1994Patents assigned to MITSUBISHI PAPER MILLS LTD (2)· patent assignee history

1993–1994Based in Nagaokakyo, JP· patent location history

2019–2020Patents assigned to KOITO MFG CO LTD (2)· patent assignee history

2019–2020Based in Shizuoka, JP· patent location history

2021Patents assigned to YAMAZAKI MAZAK CORP (2)· patent assignee history

2021Based in Niwa-gun, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
KOITO MFG CO LTD	2	2019–2020
MITSUBISHI PAPER MILLS LTD	2	1993–1994
YAMAZAKI MAZAK CORP	2	2021

Locations

Location	Patents	Span
Niwa-gun, JP	2	2021
Shizuoka, JP	2	2019–2020
Nagaokakyo, JP	2	1993–1994